刚刚编写了一些可以帮助你的东西。对 BarChart、ColumnChart、LineChart 和 AreaChart 进行了测试,对我来说效果很好(按设计,PieChart 不能正常工作)。
主要构造函数代码:
function Charts (options){
var self = this;
self.chart = [];
self.dataTable = new google.visualization.DataTable();
self.settings = $.extend({
colors:['#98D8F4','#E85500','#B3CF2F', '#FEB800', '#FFA1C5', '#D984FF', '#DD9D75'],
width: 960, height: 600,
}, options);
self.add = function(type, element){
self.chart.push({
element: $(element),
o: new google.visualization[type]($(element)[0]),
draw: function(dataTable, options){
this.element.html('');
this.o.draw(dataTable, options);
}
});
};
self.draw = function(options){
var settings = $.extend({}, this.settings, options);
$.each(self.chart, function(i, chart){
chart.draw(self.dataTable, settings)
})
};
self.parseData = function(labels, legends, data){
var countRows = data[0].length;
self.dataTable.addColumn('string', 'Name');
$.each(legends, function(i, legend){
self.dataTable.addColumn('number', legend);
})
self.dataTable.addRows(countRows);
$.each(labels, function(i, label){
self.dataTable.setValue(i, 0, label);
$.each(data, function(k, entry){
self.dataTable.setValue(i, k+1, data[k][i]);
})
})
return self.dataTable;
};
}
您可以简单地将数据作为数组传递来构建图表(您必须始终在调用 draw 方法之前解析数据)
var labels = [ "Kaspersky","Symantec","G-Data","Avira" ],
legends = [ "Antivirensoftware (kostenpflichtig)","Antivirensoftware (kostenlos)","Internetsecurity (kostenpflichtig)","Internetsecurity (kostenlos)","Sonstiges, keine Angabe","Beta-Test KIS 2010", "Something Else" ],
data = [ [46,4,7,33],[3,1,2,38],[42,12,14,7],[2,0,1,1],[43,8,14,18],[4,3,0,1],[1,2,4,2]];
除了脚本有点复杂之外,您可以轻松绘制图表。
var charts = new Charts();
charts.parseData(labels, legends, data);
charts.add('ColumnChart', '#column-chart');
charts.add('BarChart', '#bar-chart');
charts.draw({title: 'Antivirus Comparison Chart', titleY:'Points'});
并轻松刷新
charts.parseData(otherLabels, otherLegends, otherData);
charts.draw({title: 'Antivirus Comparison Chart with Other Data', titleY:'Points'});
希望它会帮助你:)
哦,不要忘记加载库并将这个脚本包含在文档准备函数中,例如
google.load("jquery", "1.3.2");
google.load('visualization', '1', {'packages':['piechart','barchart','columnchart']});
google.setOnLoadCallback(function() {
/* script here */
});